Cultivator.



No, '717,578` PATBNTED JAN.6,1903.

J. s. HOWELL.

APPLIOATION FILED APR. 3, 1902.

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No. 717,578. PATENTED JAN. 6, 1903.

J. s. HOWELL.-

GULTIVATOR.

APPLICATION FILED APB.. 3, 1902.

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f .5' Q f Q Z Q m 74( 0 o O o y if UNITED STATES PATENT OEETCE.`

JOHN SPAHB. HOWELL, OF OSCALOOSA, ILLINIS.

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PECIFICATION forming part of Letters Patent No. 717,578, dated January 6, 1903.

Application filed April 3, 1902. Serial No.101,241. (No model.)

' scription of the same, such as will enable oth-r T0 @ZZ when/ait n/trtyconcern:

Be it known that I, YJOHN SPARE HOWELL, a citizen of the United Stateaand a resident of Oscaloosa, in the county of Clay and State of Illinois, have made a certain new and useful Invention in Oultivators; and I declare the following to be a full, clear, and exact deers skilled in the art" to which' it appertains to make and use the in veiition, referencev being had to the accompanying drawings, and to letters ot' reference marked thereon, whichY form a part of this specification.

Figure is a side elevation of my invention as applied. Fig. 2 is a plan view of the saine.Y

Fig. 3 is a front elevation of the same. f Fig. i is a detail view of one ofthe footholds t.

The invention relates to cultivators; and

it consists in the novel construction and combinations of devices,ras hereinafter set forth. The object of the invention is to econoniize the labor of the horses and at the same time toi simplify the Work of the driver, and it is de-v signed to accomplishv` these vends Vthrough-a2 mode of utilizing a draft of varying direction in a continuous manner, thereby avoiding the loss of force due to incessant checking of the team and changing its line of draft.

In the accompanying drawings the letter u, designates the main frame of the cultivator, which is pivoted to the draft-pole b by means of a bolt c, the two parts Zi and ct being held level with each other by means of a transf verse segment-bar d, secured to the pole and working in slide-bearings e of the main frame in rear of the pivot-bolt. The arched aXle (indicated at f) is provided with vertical bearing-plates g, secured to its arms and facing inward. The forward ends of the rearwardly-diverging cultivator-beams are pivoted to the front of the main frame,'which is usually constructed with a cast-iron front plate n, through which the pivot-bolt of the draft-pole passes. The ends of the supporting-bar Z are attached to connecting-rods p, which are provided with spring-cushions q and are pivoted to the ends of the adjustment-levers r. The doubletree 3 is 'connected to the rear of the pole, usually by the kingbolt c. The rear end of the pole is provided with footholds or pressure-seats t, whereby the action on the fulcrum-pole is secured during a constantly-acting draft force by the driver, whose feet are designed to engage said seats. The main bars u of the main frame diverge from `the front plate, to which they are secured, toward the rear and are attaehed to the arched axle, near vthe ends thereof, sov th'at'they are'outfof the way and permit the free movement .of the bottom frame with reference to the draft. The improved draft is'designed to be serviceable especially in connection with aV disk cultivator; but it may be employed in 'connection with shovel-coltivatore of various kinds.

The cultivator-beams having been adj usted by means of the supporting-bar to take evenly' -ing them more easily in the'proper line of draft. Swerving of the dra-itis, however, a constant occurrence, and the driver instead of checking the draft ,to bring-the team to position simply operatesthrough the leverage afforded by the draft-pole and by means of the Yfoothclds of the segment-bar, with his body in the seat, to guide and keep the lower main frame and its connected cultivatorbeams in the proper line of work. In this operation the strain of the draft remains constant and the strength of the horses is economized: The cultivator disks or plows are kept in proper Vposition with reference to the lower frame by means of the vertical bearingplates and the end rollers of the pressurebar engaging the same, so that there is no liability to loose lateral deviation in the work of said disks or plows. The driver can keep the cultivator correctly steadily working on the row even though one of the horses may be walking on it.h So, also, he can plow one side of the row, the plows of the other side being adjusted to remain out of the ground, or the two sides of the cultivator can be adj usted for even plowing.

Having described this invention, what I claim, and desire to secure by Letters Patent,

In a cultivator, the combination of the main frame, having the arched axle, a cultivatorframe having a transverse supporting-bar provided with end rollers, and forwardly-ex- ICO tending rearwardly-diverging beams oonnectverse segment-bar, the slide-bearings, and the ed atthe rear to said supporting-bar, and havfootholds of the segment-bar, substantially ing a forward pivotal connection with the as specied.

main frame, connecting-rods, and adjusting- In testimony whereof I afx my signature 5 levers connected through the medium thereof i in presence of two Witnesses.

to the end portions of said supporting-bar,

Vert-ical bearing-plates connected to Vertical JOHN SPAHR HOWELL' arms of said axle, and in line with said snp- Vitnesses: porting-bar, the tongue pivoted to the front WILLIAM WESLEY SPEAKS,

lo of the main frame, and having the rear trans- MORGAN LOUIS SABIN. 

